WO2003014538B1 - Exhaust gas purifying apparatus - Google Patents

Exhaust gas purifying apparatus

Info

Publication number
WO2003014538B1
WO2003014538B1 PCT/IB2002/003115 IB0203115W WO03014538B1 WO 2003014538 B1 WO2003014538 B1 WO 2003014538B1 IB 0203115 W IB0203115 W IB 0203115W WO 03014538 B1 WO03014538 B1 WO 03014538B1
Authority
WO
WIPO (PCT)
Prior art keywords
partitioning walls
purifying apparatus
particulate filter
exhaust purifying
partitioning
Prior art date
Application number
PCT/IB2002/003115
Other languages
French (fr)
Other versions
WO2003014538A1 (en
Inventor
Koichiro Nakatani
Shinya Hirota
Original Assignee
Toyota Motor Co Ltd
Koichiro Nakatani
Shinya Hirota
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US10/485,574 priority Critical patent/US7141088B2/en
Application filed by Toyota Motor Co Ltd, Koichiro Nakatani, Shinya Hirota filed Critical Toyota Motor Co Ltd
Priority to DE60213426T priority patent/DE60213426T2/en
Priority to KR1020047001977A priority patent/KR100610525B1/en
Priority to EP02779774A priority patent/EP1417400B1/en
Publication of WO2003014538A1 publication Critical patent/WO2003014538A1/en
Publication of WO2003014538B1 publication Critical patent/WO2003014538B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • B01J35/56—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/10—Residue burned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/30—Exhaust treatment

Abstract

A particulate filter (22) for collecting particulates in the exhaust gas is comprised. The particulate filter (22) includes partitioning walls (54) for forming passages (50, 51). The partitioning walls (54) are made of a porous material. The end portions of adjacentpartitioningwalls (54) are brought close each other so as to narrow the respective passage formed by the partitioning walls (54), and the cross-sectional area of the flow path at the end region of the passage is made to be smaller than the cross- sectional area of the flow path in the remaining regions of the passage. The particulate filter (22) has an extended portion (55) which extends beyond the top ends of the partitioning walls (54) from the end surface of the particulate filter (22).

Claims

39
AMENDED CLAIMS
[received by the International Bureau on 17 March 2003 (17.03.2003); original claims 1-13 replaced by new claims 1-14 (5 pages.)]
1 , An exhaust purifying apparatus comprising a particulate filter (22) for collecting particulates in an exhaust gas , the particulate filter including partitioning walls (54) for forming a passage (50 51) , the partitioning walls (54) being made of a porous material, and end portions (52 , 53) of adjacent partitioning walls (54) being brought close to each other so as to narrow the respective passage formed by the partitioning walls (54) so that the cross -sectional area of a flow path formed by the end portions (52, 53) of the adjacent partitioning walls (54) is smaller than the cross-sectional area of a flow path formed by the remaining portions of the adjacent partitioning walls (54), characterized 'in that : the particulate filter (22) has an extended portion (55) which extends beyond top, ends of the partitioning walls (54) from an end surface of the particulate filter such that it prevents damage of the top ends of the partitioning walls (54) when the particulate filter is being handled.
2. An exhaust purifying apparatus according to claim 1, characterized in that; the extended portion (55) is extended in an axial direction of the particulate filter, 40
3. An exhaust purif ing apparatus according to claim 1 or 2 , characterized in that; the extended portion (55) is a portion of the outer peripheral wall (56) of the particulate filter.
4. An exhaust purifying apparatus according to claim 3, characterized in that; the portion of the outer peripheral wall (56) which extends beyond the top ends of the partitioning walls (54) extends so as to surround the top ends of the partitioning walls.
5. An exhaust purifying apparatus according to claim 3 or 4 , characterized in that; the rigidity of the portion of the outer peripheral wall (56) extending beyond the top ends of the partitioning walls (54) is higher than the rigidity of the partitioning walls.
6. An exhaust purifying apparatus according to claim 5, characterized in that; the thickness of the portion of the outer peripheral wall (56) extending beyond the top ends of the partitioning walls (54) is larger than the thickness of the partitioning walla,
7. An exhaust purifying apparatus according to any one of claims 1 to 6, characterized in that; 41 the end portions of the partitioning walls (54) are combined together and the top ends of the partitioning walls are connected with each other so as to cloBe one end surface of the passage (52, 53).
8. An exhaust purifying apparatus according to claim 1 , characterized in that; a plurality of partitioning walls (54) are comprised and the plurality of the partitioning walls form a plurality of passages (52, 53) , in some of the plurality of passages, downstream end portions of the partitioning walls are combined together and connected with each other so as to form a first connected portion, whereas in the remaining passages, upstream end portions of the partitionxng walls (54) are combined together and connected with each other so as to form a second connected portion.
9. An exhaust purifying apparatus according to claim 8, characterized in that; the extended portion (55) is provided with at least one of the plurality of the partitioning walls (54) so as to extend toward the outside of the particulate filter in ai axial direction into a length longer than the remaining partitioning walls,
10. An exhaust purifying apparatus according to claim 8 or 9, characterized in that; the extended portion (55) is provided with the partitioning walls (54) which form at least one of the plurality of the first connected portions so as to extend toward the outside of. the particulate filter in an axial direction into a length longer than the partitioning walls which form the remaining first connected portions -
11. An exhaust purifying apparatus according to any one of claims S to 10, characterized in that; the extended portion (55) is provided with the partitioning walls which form at least one of the second connected portions among the plurality of the second connected portions so as to extend toward the outside of the particulate filter in an axial direction into a length longer than the partitioning walls which form the remaining second connected portions .
12. An exhaust purifying apparatus according to any one of claims 9 to 11, characterized in that; the extended portion (55) is formed at the partitioning wall which constitutes the outer peripheral wall (56) of the particulate filter.
13. An exhaust purifying apparatus according to any one of claims 1 to 12, characterized in that; an oxidizing substance capable of oxidizing particulates is supported on the partitioning walls. 43
14. An exhaust purifying apparatus according to any one of the preceding claims wherein the top ends of the partitioning walls (54) are sharply pointed.
PCT/IB2002/003115 2001-08-08 2002-08-07 Exhaust gas purifying apparatus WO2003014538A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/485,574 US7141088B2 (en) 2001-08-08 2000-08-07 Exhaust gas purifying apparatus
DE60213426T DE60213426T2 (en) 2001-08-08 2002-08-07 EMISSION CONTROL
KR1020047001977A KR100610525B1 (en) 2001-08-08 2002-08-07 Exhaust gas purifying apparatus
EP02779774A EP1417400B1 (en) 2001-08-08 2002-08-07 Exhaust gas purifying apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-241350 2001-08-08
JP2001241350A JP3702821B2 (en) 2001-08-08 2001-08-08 Exhaust purification device

Publications (2)

Publication Number Publication Date
WO2003014538A1 WO2003014538A1 (en) 2003-02-20
WO2003014538B1 true WO2003014538B1 (en) 2003-06-12

Family

ID=19071810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/003115 WO2003014538A1 (en) 2001-08-08 2002-08-07 Exhaust gas purifying apparatus

Country Status (7)

Country Link
US (1) US7141088B2 (en)
EP (1) EP1417400B1 (en)
JP (1) JP3702821B2 (en)
KR (1) KR100610525B1 (en)
CN (1) CN1267626C (en)
DE (1) DE60213426T2 (en)
WO (1) WO2003014538A1 (en)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
JP4032902B2 (en) * 2002-09-25 2008-01-16 トヨタ自動車株式会社 Substrate for exhaust purification and method for manufacturing the same
JP3945452B2 (en) * 2003-05-30 2007-07-18 株式会社デンソー Manufacturing method of exhaust gas purification filter
JP4767491B2 (en) 2003-12-11 2011-09-07 日本碍子株式会社 Honeycomb structure
WO2005097446A1 (en) * 2004-04-07 2005-10-20 Liqtech A/S Method for forming organic bonded bodies using ultrasonic energy
JP4532192B2 (en) * 2004-07-21 2010-08-25 日本碍子株式会社 MEMBER FOR PACKING FORMATION AND METHOD FOR PRODUCING DUST COLLECTION FILTER USING THE
CN100395435C (en) * 2005-06-29 2008-06-18 清华大学 Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle
US20090056546A1 (en) * 2007-08-31 2009-03-05 Timothy Adam Bazyn Partial flow exhaust filter
KR100927887B1 (en) * 2008-02-18 2009-11-23 화이버텍 (주) Exhaust gas purification device
US8613806B2 (en) 2010-08-30 2013-12-24 Corning Incorporated Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus
US8177114B2 (en) * 2010-08-30 2012-05-15 Corning Incorporated Method for eliminating carbon contamination of platinum-containing components for a glass making apparatus
MX2016011254A (en) * 2014-03-03 2016-11-30 Sumitomo Chemical Co Honeycomb filter, and method for manufacturing honeycomb filter.
JP7213054B2 (en) * 2018-10-12 2023-01-26 イビデン株式会社 honeycomb structure
JP2020093183A (en) * 2018-12-10 2020-06-18 株式会社Ｓｏｋｅｎ Exhaust gas cleaning filter
CN112610306A (en) * 2020-12-11 2021-04-06 安徽江淮汽车集团股份有限公司 Gasoline engine particle filter

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Also Published As

Publication number Publication date
JP2003049641A (en) 2003-02-21
CN1267626C (en) 2006-08-02
DE60213426T2 (en) 2007-09-20
EP1417400A1 (en) 2004-05-12
KR100610525B1 (en) 2006-08-09
WO2003014538A1 (en) 2003-02-20
DE60213426D1 (en) 2006-09-07
EP1417400B1 (en) 2006-07-26
KR20040032900A (en) 2004-04-17
US7141088B2 (en) 2006-11-28
US20040244343A1 (en) 2004-12-09
CN1541299A (en) 2004-10-27
JP3702821B2 (en) 2005-10-05

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